Inside Smalltalk Vol 2 by Wilf R. Lalonde, John R. Pugh

By Wilf R. Lalonde, John R. Pugh

A quantity consultant to object-oriented programming that provides the smalltalk approach as a strong and effective prototyping and improvement atmosphere. quantity describes the Smalltalk sessions that offer the commonly used overlapping home windows, pop-up menus, and mouse interplay facility that characterizes the Smalltalk person interface. It additionally covers the model-view controller framework for the development of person interfaces. It gains the version view-controller paradigm for window-based functions, and information person periods, together with relationships among comparable periods and layout rationales. The ebook is written for use in parallel with the Smalltalk method.

Show description

Read or Download Inside Smalltalk Vol 2 PDF

Similar object-oriented design books

Pro Active Record: Databases with Ruby and Rails

Professional lively checklist is helping you are taking benefit of the total energy of your database engine from inside your Ruby courses and Rails purposes. ActiveRecord, a part of the magic that makes the Rails framework so robust and straightforward to take advantage of, is the version component of Rails model/view/controller framework. Its an object-relational mapping library allowing you to have interaction with databases from either Ruby and Rails purposes.

Liferay 6.2 User Interface Development

Liferay employs a really good theming procedure on the way to swap the appear and feel of the consumer interfaces. Liferay Portal offers format templates in an effort to describe how quite a few columns and rows are prepared to demonstrate portlets. It additionally presents topics that may be used to customise the general feel and appear of sites and websites.

Control flow semantics

Keep an eye on circulation Semantics provides a unified, formal therapy of the semantics of a large spectrum of keep watch over circulation notions as present in sequential, concurrent, good judgment, object-oriented, and sensible programming languages. while in additional conventional methods one makes a speciality of input/output habit, during this paintings equivalent realization is dedicated to finite and countless computations, the latter inspired by means of the turning out to be value of reactive structures.

Apache Camel Developer's Cookbook

Apache Camel is a de-facto usual for constructing integrations in Java, and relies on well-understood company Integration styles. it truly is used inside of many advertisement and open resource integration items. Camel makes universal integration initiatives effortless whereas nonetheless supplying the developer with the skill to customise the framework while the placement calls for it.

Extra resources for Inside Smalltalk Vol 2

Example text

5 Window Management Versus Process Management During an interactive session, users generally manipulate many windows. They may interact with one window for a while, then switch to another for a short time, and finally switch back. A window may pop up as a consequence of some user-initiated action and wait for a specific response. Once provided, the window may disappear and the previous window regains control. , only one window actually executing. The others, the inactive windows, are held in abeyance waiting for a tum at becoming the active window.

ADelay wait Suspends the active process for the amount of time specified by the delay. aDelay disable Ensures that the delay can no longer be enabled. Example Suppose that we want to work for one hour and we would like a reminder at the end of that time period. Additionally, suppose it is early morning and we need to be reminded of lunch at noon. " wait. "When execution resumes, we will execute the following:" 10 timesRepeat: [Transcript show: 'One hour is up!! " theOneHourReminderBlock forkAt: (Processor activePriority + 1).

A would be turned on => a changed message is sent to A (to itself) => an update: message is sent to B (and all other dependents; A, in particular, is not a dependent of itself) => B is turned off => a c~langed message is sent to B (to itself) => an lJpdate: message is sent to A and all other dependents of B => A is turned off (this causes another change,j message to be sent with another round of updates: messages; this time all lights are off, so turning it off has no effect). 22 Inside Smalltalk Although we want the act of turning on A to cause B to turn off, we don't want the act of turning off B to cause A in turn to be turned off.

Download PDF sample

Rated 4.33 of 5 – based on 34 votes